Disease ReservoirsFresh WaterRodentiaAnimals, WildZoonosesSensitivity and SpecificityPhytoplanktonEutrophicationVirus LatencyPolymerase Chain ReactionCladoceraPhylogenyTime FactorsWater MicrobiologyRiversRodent DiseasesMolecular Sequence DataSequence Analysis, DNABrazilEquipment DesignSeasonsChiropteraTreatment OutcomePopulation DensityFecesReproducibility of ResultsZooplanktonPeromyscusWater SupplyDNA, BacterialWater MovementsHantavirus InfectionsEnvironmental MonitoringHIV-1Urinary Reservoirs, ContinentDisease VectorsHantavirusIleostomyAnimals, DomesticProspective StudiesGerm-Free LifeHIV InfectionsRotiferaCattleDogsBacteriaBacteriological TechniquesPetroleumSwineBiodiversityEcosystemDog DiseasesCopepodaCD4-Positive T-LymphocytesArvicolinaeSpecies SpecificityGeologyBartonella InfectionsCarrier StateProctocolectomy, RestorativeBase SequenceTicksRNA, Ribosomal, 16SCommunicable Diseases, EmergingFollow-Up StudiesMagnetic Resonance ImagingAlgorithmsCluster AnalysisEvaluation Studies as TopicAnti-Bacterial AgentsPopulation DynamicsCylindrospermopsisModels, BiologicalMuridaeAnal CanalInsect VectorsFishesEcologyVirus ReplicationIxodesEnvironmental MicrobiologyBacterial Typing TechniquesRectumArgentinaBirdsGenetic VariationRetrospective StudiesOrganic AgricultureGenotypeDisease OutbreaksDeerColony Count, MicrobialTomography, X-Ray ComputedBiomassCells, CulturedAnti-HIV AgentsGeologic SedimentsDNA, RibosomalTick InfestationsHantavirus Pulmonary Syndrome